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US 2009/0151879 A1Published application
Motorized system for closing a building
AssigneeBubendorff
InventorsOlivier Walti, Nils Casteras
Life of this patent
Estimating the term…
Abstract
The invention relates to a motorized system for closing a building, of the roller shutter type with the particular feature that it has a two-phase asynchronous motor which comprises two windings (2; 3) and is combined with a speed-varying device (5).
Claims12
Motorized system for closing a building, of the type roller shutter, which includes a two-phase asynchronous motor comprising two windings and which a speed-varying device is associated with.
Dependencies are inferred from the claim text.